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Finding the Fourth Proportional to 181,907.70, 272,861.55 and 153,039.30

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Solution

The fourth proportional to 181,907.70, 272,861.55 and 153,039.30 is: 229,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,907.70 : 272,861.55 = 153,039.30 : x
  2. Step 2: Convert to fraction form
    181,907.70/272,861.55 = 153,039.30/x
  3. Step 3: Cross multiply
    181,907.70x = 272,861.55 × 153,039.30
  4. Step 4: Simplify right side
    181,907.70x = 41,758,540,608.92
  5. Step 5: Solve for x
    x = 41,758,540,608.92/181,907.70
  6. Step 6: Final answer
    x = 229,558.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.